This list shows volcanoes currently monitored by the Cascades Volcano Observatory, which range in order of highest to lowest risk assessment.
According to the USGS risk assessment of volcanoes located in the northern Cascades region, the following volcanoes were ranked "very high threat potential".5
The following volcanoes were ranked "high threat potential":6
The following volcanoes were ranked "moderate threat potential":7
The following volcanoes were ranked "Low to Very Low Threat Potential":8
There are other volcanoes in the northern Cascades region that have not been assessed one of these risk levels which warrant monitoring. Volcanoes that have not erupted during the Holocene period were not included. USGS has noted, though less probable, that it is still possible for volcanoes to erupt at longer intervals than mentioned.9
45°36′39″N 122°29′48″W / 45.61083°N 122.49667°W / 45.61083; -122.49667
Google Books, Monitoring Volcanoes: Techniques and Strategies Used by the Staff of the Cascades Volcano Observatory, 1980-90, Editors - John W. Ewert and Donald A. Swanson, United States Geological Survey, United States Government Printing Office, 1992, page 1, Retrieved May 11, 2018. https://books.google.com/books?id=vzKE9HDdQRUC&dq=cvo+vancouver+1980&pg=PA1 ↩
The Legacy of David A. Johnston https://volcanoes.usgs.gov/observatories/cvo/david_johnston.html ↩
Klemetti, Erik (10 February 2012). "Meet the USGS's Newest Volcano Observatory: CalVO". Eruptions. Wired.com. Retrieved 11 February 2012. https://www.wired.com/wiredscience/2012/02/meet-the-usgss-newest-volcano-observatory-calvo/ ↩
"WOVO.org: World Organization of Volcano Observatories". Archived from the original on 2020-10-29. Retrieved 2009-12-10. https://web.archive.org/web/20201029050539/http://wovo.org/1201.html ↩
Cascades Volcano Observatory, Main Page -- Risk Assessment of Volcanoes, Retrieved Dec. 29. 2021. https://www.usgs.gov/observatories/cvo ↩